From cc139c77212bd1c8bf306048539eef20ad955f9a Mon Sep 17 00:00:00 2001 From: Nathaniel Graff <nathaniel.graff@sifive.com> Date: Thu, 13 Dec 2018 14:02:52 -0800 Subject: Support Building of MEE and MEE examples Signed-off-by: Nathaniel Graff <nathaniel.graff@sifive.com> --- Makefile | 140 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 129 insertions(+), 11 deletions(-) (limited to 'Makefile') diff --git a/Makefile b/Makefile index 5b1b186..ec363a9 100644 --- a/Makefile +++ b/Makefile @@ -15,21 +15,32 @@ include $(extra_configs) endif # Default target + +# legacy for old e-sdk or mee +BSP ?= legacy + +ifeq ($(BSP),legacy) +BSP_SUBDIR ?= env BOARD ?= freedom-e300-hifive1 PROGRAM ?= demo_gpio LINK_TARGET ?= flash GDB_PORT ?= 3333 -# Variables the user probably shouldn't override. -builddir := work/build +else # MEE +BSP_SUBDIR ?= +PROGRAM ?= hello +BOARD ?= sifive-hifive1 +endif # $(BSP) + +# Variables the user probably shouldn't override. ############################################################# # BSP Loading ############################################################# # Finds the directory in which this BSP is located, ensuring that there is # exactly one. -board_dir := $(wildcard bsp/env/$(BOARD)) +board_dir := $(wildcard bsp/$(BSP_SUBDIR)/$(BOARD)) ifeq ($(words $(board_dir)),0) $(error Unable to find BSP for $(BOARD), expected to find either "bsp/$(BOARD)" or "bsp-addons/$(BOARD)") endif @@ -37,10 +48,17 @@ ifneq ($(words $(board_dir)),1) $(error Found multiple BSPs for $(BOARD): "$(board_dir)") endif +ifeq ($(BSP), mee) + +include $(board_dir)/settings.mk + +else + # There must be a settings makefile fragment in the BSP's board directory. ifeq ($(wildcard $(board_dir)/settings.mk),) $(error Unable to find BSP for $(BOARD), expected to find $(board_dir)/settings.mk) endif + include $(board_dir)/settings.mk ifeq ($(RISCV_ARCH),) @@ -51,6 +69,8 @@ ifeq ($(RISCV_ABI),) $(error $(board_dir)/board.mk must set RISCV_ABI, the ABI to target) endif +endif + # Determines the XLEN from the toolchain tuple ifeq ($(patsubst rv32%,rv32,$(RISCV_ARCH)),rv32) RISCV_XLEN := 32 @@ -68,10 +88,16 @@ help: @echo " SiFive Freedom E Software Development Kit " @echo " Makefile targets:" @echo "" - @echo " software [PROGRAM=$(PROGRAM) BOARD=$(BOARD)]:" + @echo " software BSP=legacy [PROGRAM=$(PROGRAM) BOARD=$(BOARD)]:" @echo " Build a software program to load with the" @echo " debugger." @echo "" + @echo " mee BSP=mee [BOARD=$(BOARD)]" + @echo " Build the MEE library for BOARD" + @echo "" + @echo " examples BSP=mee [BOARD=$(BOARD)]" + @echo " Build all the examples for the given board." + @echo "" @echo " clean [PROGRAM=$(PROGRAM) BOARD=$(BOARD)]:" @echo " Clean compiled objects for a specified " @echo " software program." @@ -90,29 +116,112 @@ help: @echo "" @echo " For more information, visit dev.sifive.com" +.PHONY: clean +clean: + ############################################################# # This section is for tool configuration ############################################################# -toolchain_builddir := $(builddir)/riscv-gnu-toolchain/riscv64-unknown-elf -toolchain_prefix := $(toolchain_builddir)/prefix - -RISCV_PATH ?= $(toolchain_prefix) - +# If users don't specify RISCV_PATH then assume that the tools will just be in +# their path. +ifeq ($(RISCV_PATH),) +RISCV_GCC := $(CROSS_COMPILE)-gcc +RISCV_GXX := $(CROSS_COMPILE)-g++ +RISCV_OBJDUMP := $(CROSS_COMPILE)-objdump +RISCV_GDB := $(CROSS_COMPILE)-gdb +RISCV_AR := $(CROSS_COMPILE)-ar +RISCV_OPENOCD := openocd +else RISCV_GCC := $(abspath $(RISCV_PATH)/bin/$(CROSS_COMPILE)-gcc) RISCV_GXX := $(abspath $(RISCV_PATH)/bin/$(CROSS_COMPILE)-g++) RISCV_OBJDUMP := $(abspath $(RISCV_PATH)/bin/$(CROSS_COMPILE)-objdump) RISCV_GDB := $(abspath $(RISCV_PATH)/bin/$(CROSS_COMPILE)-gdb) RISCV_AR := $(abspath $(RISCV_PATH)/bin/$(CROSS_COMPILE)-ar) +RISCV_OPENOCD := $(abspath $(RISCV_PATH)/bin/openocd) +PATH := $(abspath $(RISCV_PATH)/bin):$(PATH) +endif -PATH := $(abspath $(RISCV_PATH)/bin):$(PATH) +############################################################# +# Compiles an instance of the MEE targeted at $(BOARD) +############################################################# +ifeq ($(BSP),mee) +MEE_SOURCE_PATH ?= freedom-mee +MEE_BSP_PATH = bsp/$(BOARD) +MEE_LDSCRIPT = $(MEE_BSP_PATH)/mee.lds +MEE_HEADER = $(MEE_BSP_PATH)/mee.h + +.PHONY: mee +mee: $(MEE_BSP_PATH)/install/stamp + +$(MEE_BSP_PATH)/build/Makefile: + @rm -rf $(dir $@) + @mkdir -p $(dir $@) + cd $(dir $@) && \ + CFLAGS="-march=$(RISCV_ARCH) -mabi=$(RISCV_ABI) -g" \ + $(abspath $(MEE_SOURCE_PATH)/configure) \ + --host=$(CROSS_COMPILE) \ + --prefix=$(abspath $(MEE_BSP_PATH)/install) \ + --with-preconfigured \ + --with-machine-name=$(BOARD) \ + --with-machine-header=$(abspath $(MEE_HEADER)) \ + --with-machine-ldscript=$(abspath $(MEE_LDSCRIPT)) \ + --with-builtin-libgloss + touch -c $@ + +$(MEE_BSP_PATH)/install/stamp: $(MEE_BSP_PATH)/build/Makefile + $(MAKE) -C $(abspath $(MEE_BSP_PATH)/build) install + date > $@ + +$(MEE_BSP_PATH)/install/lib/libriscv%.a: $(MEE_BSP_PATH)/install/stamp ;@: + +$(MEE_BSP_PATH)/install/lib/libmee.a: $(MEE_BSP_PATH)/install/lib/libriscv__mmachine__$(BOARD).a + cp $< $@ + +$(MEE_BSP_PATH)/install/lib/libmee-gloss.a: $(MEE_BSP_PATH)/install/lib/libriscv__menv__mee.a + cp $< $@ + +.PHONY: clean-mee +clean-mee: + rm -rf $(MEE_BSP_PATH)/install + rm -rf $(MEE_BSP_PATH)/build +clean: clean-mee +endif + +mee_install: mee + $(MAKE) -C $(MEE_SOURCE_PATH) install ############################################################# # This Section is for Software Compilation ############################################################# -PROGRAM_DIR = software/$(PROGRAM) PROGRAM_ELF = software/$(PROGRAM)/$(PROGRAM) +ifeq ($(BSP),mee) +.PHONY: software +software: $(PROGRAM_ELF) + +$(PROGRAM_ELF): \ + $(shell find $(abspath $(dir $(PROGRAM_ELF))) -type f) \ + $(MEE_BSP_PATH)/install/lib/libmee.a \ + $(MEE_BSP_PATH)/install/lib/libmee-gloss.a \ + $(MEE_BSP_PATH)/mee.lds + $(MAKE) -C $(dir $@) $(notdir $@) \ + CC=$(RISCV_GCC) \ + CXX=$(RISCV_GXX) \ + CFLAGS="-Os -march=$(RISCV_ARCH) -mabi=$(RISCV_ABI) -g" \ + CXXFLAGS="-Os -march=$(RISCV_ARCH) -mabi=$(RISCV_ABI) -g" \ + LDFLAGS="-nostartfiles -nostdlib -L$(sort $(dir $(abspath $(filter %.a,$^)))) -T$(abspath $(filter %.lds,$^))" \ + LDLIBS="-Wl,--start-group -lc -lmee -lmee-gloss -Wl,--end-group" + touch -c $@ + +.PHONY: clean-software +clean-software: + $(MAKE) -C $(dir $(PROGRAM_ELF)) clean +clean: clean-software + +else +PROGRAM_DIR=$(dir $(PROGRAM_ELF)) + .PHONY: software_clean clean: software_clean software_clean: @@ -124,10 +233,18 @@ software: software_clean dasm: software $(RISCV_OBJDUMP) $(RISCV_OBJDUMP) -D $(PROGRAM_ELF) +endif ############################################################# # This Section is for uploading a program to SPI Flash ############################################################# +ifeq ($(BSP),mee) +upload: $(PROGRAM_ELF) + scripts/upload --elf $(PROGRAM_ELF) --openocd $(RISCV_OPENOCD) --gdb $(RISCV_GDB) --openocd-config bsp/$(BOARD)/openocd.cfg + +debug: $(PROGRAM_ELF) + scripts/debug --elf $(PROGRAM_ELF) --openocd $(RISCV_OPENOCD) --gdb $(RISCV_GDB) --openocd-config bsp/$(BOARD)/openocd.cfg +else OPENOCDCFG ?= bsp/env/$(BOARD)/openocd.cfg OPENOCDARGS += -f $(OPENOCDCFG) @@ -146,6 +263,7 @@ upload: $(RISCV_OPENOCD) $(OPENOCDARGS) & \ $(RISCV_GDB) $(PROGRAM_DIR)/$(PROGRAM) $(GDB_UPLOAD_ARGS) $(GDB_UPLOAD_CMDS) && \ echo "Successfully uploaded '$(PROGRAM)' to $(BOARD)." +endif ############################################################# # This Section is for launching the debugger -- cgit v1.2.3